Eagle from cadsoft is a design tool for printed circuit boards for which I use to create PCB’s. Eagle is capable of porting these to IDF format to support generating a 3D view of the board. It then generates two files with .emp and .emn extension which is a intermediate file format used to generate a 3D file. the .emn file is the one containing PCB specific data to import as 3D. The EMP is a library file containing components info, position and height infor of these. It is the emn file that is of interest to me
I could not see any support for loading IDF formatted files in Rhino. Question is if there are any plugins that could do or other solutions available.
There is more information available at the following coordinates regarding IDF files.